如果将教材中的概念、公理、定义、定理、公式、法则等均称为知识点,显然,数学课本的每章节乃至整个课本中的某些知识点之间,必然存在某种关系,如存在数学上的抽象关系,即强抽象、弱抽象和广义抽象关系.一般地,设A,B是两个知识点,如果B是A的特例,则称A到B的抽象是强抽象, If the textbook concept, axioms, definitions, theorems, formulas, laws and so on are called knowledge points, it is clear that there must be some relationship between each chapter in mathematics textbook and some knowledge points in the entire textbook, such as the existence Mathematical abstract relations, that is, strong abstract, weak abstract and generalized abstract relations.Generally, let A, B is the two knowledge points, if B is a special case of A, then said A to B abstraction is a strong abstraction,